Device for a hot air shower

ABSTRACT

A device ( 1 ) for a hair dryer ( 2 ), having a fan ( 3 ) and a heater ( 4 ) for generating a central hot-air stream ( 5 ) and a concentric cold-air stream ( 6 ) at a blower opening ( 7 ). As the device ( 1 ), an air nozzle attachment ( 8 ) embodied as connectable to the blower opening ( 7 ) is provided of a kind such that the air nozzle attachment ( 8 ), from the central hot-air stream ( 5 ) and the concentric cold-air stream ( 6 ) of the hair dryer ( 2 ), generates a hot-air stream ( 9 ) and a cold-air stream ( 10 ) that are located side by side (FIG.  1 ).

The invention relates to a device for a hair dryer, having a fan and a heater, for generating a central hot-air stream and a concentric cold-air stream at a blower opening.

A hair dryer of this kind, for instance for drying or otherwise treating hair on the head, is known for instance from German Utility Model DE9001199U1. In it, a concentric cold-air stream from a blower opening of a hair dryer is meant to prevent the scalp from becoming excessively hot from the hot-air stream. A disadvantage here is that the concentric cold-air stream simultaneously strikes the hair on the head as well, which leads to unwanted cooling.

The object of the invention is therefore to create a device of this same generic type which does not have the aforementioned disadvantages and is simple in construction and can be produced economically.

This object is attained by the provisions of the body of claim 1. Further features of the invention will become apparent from the dependent claims.

The invention will be described in further detail in terms of an exemplary embodiment.

Shown are:

FIG. 1, in a side view in section, a hair dryer with a device embodied as an air nozzle attachment;

FIG. 2, in an axial end view on the air nozzle attachment, the hair dryer of FIG. 1;

FIG. 3, in a sectional fragmentary view, the front region of the hair dryer of FIG. 1, but without an air nozzle attachment;

FIGS. 4 through 6, in various, slightly enlarged views, the air nozzle attachment as an individual part; and

FIG. 7, in a sectional side view, a further air nozzle attachment for only hot air.

FIGS. 1 through 6 show a device 1 for a hair dryer 2, having a fan 3 and a heater 4 for generating a central hot-air stream 5 and a concentric cold-air stream 6 at a blower opening 7, and in the region of the heater 4, the hot-air stream 9 and the cold-air stream 10 are separated by a partition 22. As the device 1, an air nozzle attachment 8 embodied as connectable to the blower opening 7 is provided of a kind such that the air nozzle attachment 8, from the central hot-air stream 5 and the concentric cold-air stream 6 of the hair dryer 2, generates a hot-air stream 9 and a cold-air stream 10 that are located side by side. The air nozzle attachment 8, on the end with the blower opening 7, has a central conduit entrance 11 and a coaxial conduit entrance 12, and the central conduit entrance 11 discharges into a hot-air nozzle 13 and the coaxial conduit entrance 12 discharges into a cold-air nozzle 14, and the hot-air nozzle 13 and the cold-air nozzle 14 are located side by side. The central conduit entrance 11 and the coaxial conduit entrance 12 are joined together by means of connecting struts 24.

The hot-air nozzle 13 and the cold-air nozzle 14 are each designed as a flat nozzle 15 and are each located with one flat side against one another; the hot-air nozzle 13 and the cold-air nozzle 14 have at least approximately the same blower cross section 16, 17.

Because the hot-air nozzle 13 has a smaller blower cross section 16 than the blower cross section 17 of the cold-air nozzle 14, very good cooling of a scalp is attained.

For practical reasons, the hot-air nozzle 13 and the cold-air nozzle 14 end at the same length.

Because the air nozzle attachment 8 is embodied as being axially rotatably connectable in the region of the blower opening 7, the air nozzle attachment 8 can be positioned in any angular position, simplifying manipulation of the hair dryer 2 such that areas of the hair on the side of the head, especially, can be treated optimally and in an aimed manner with the air nozzle attachment 8.

The air nozzle attachment 8 is connectable with the region of the blower opening 7 by means of a snap-on connection 18, which is known per se and not shown in further detail, that can be detached again.

For reasons of cost, the air nozzle attachment 8 comprises heat-resistant plastic 19.

For simple visual monitoring of the air nozzle attachment 8 adjusted to a particular angle of rotation, the outer parts of the hot-air nozzle 13 and of the cold-air nozzle 14 are identified visually differently, for instance by providing that the outer part 20 of the hot-air nozzle 13 is identified by a red color, and the outer part 21 of the cold-air nozzle 14 is identified by a blue color.

FIG. 7 shows a further air nozzle attachment 23, for a hot-air stream 9 only. Because a hot-air nozzle attachment 23 is provided for the air nozzle attachment 8 for selective dampening, it is selectively possible to generate solely a hot-air stream 9 with the hair dryer 2. The solely hot-air stream 9 is generated by providing that the blower opening 7 of the concentric cold-air stream 6 is closed by the air nozzle attachment 8, and allows only the hot-air stream 9 to pass through it.

LIST OF REFERENCE NUMERALS

-   1 Device -   2 Hair dryer -   3 Fan -   4 Heater -   5 Central hot-air stream -   6 Concentric cold-air stream -   7 Blower opening -   8 Air nozzle attachment -   9 Hot-air stream -   10 Cold-air stream -   11 Central conduit entrance -   12 Coaxial conduit entrance -   13 Hot-air nozzle -   14 Cold-air nozzle -   15 Flat nozzle -   16 Blower cross section of hot-air nozzle -   17 Blower cross section of cold-air nozzle -   18 Snap-on connection -   19 Plastic -   20 Outer part of hot-air nozzle -   21 Outer part of cold-air nozzle -   22 Partition -   23 Hot-air nozzle attachment -   24 Connecting strut 

1. A device for a hair dryer, having a fan and a heater for generating a central hot-air stream and having a concentric cold-air stream at a blower opening, characterized in that as the device (1), an air nozzle attachment (8) embodied as connectable to the blower opening (7) is provided of such a kind that the air nozzle attachment (8), from the central hot-air stream (5) and the concentric cold-air stream (6) of the hair dryer (2) generates a hot-air stream (9) and a cold-air stream (10) that are located side by side.
 2. The device of claim 1, characterized in that the air nozzle attachment (8), on the end with the blower opening (7), has a central conduit entrance (11) and a coaxial conduit entrance (12), and the central conduit entrance (11) discharges into a hot-air nozzle (13) and the coaxial conduit entrance (12) discharges into a cold-air nozzle (14); and that the hot-air nozzle (13) and the cold-air nozzle (14) are located side by side.
 3. The device of claim 2, characterized in that the hot-air nozzle (13) and the cold-air nozzle (14) are each designed as a flat nozzle (15) and are each located with one flat side against one another.
 4. The device of claim 2, characterized in that the hot-air nozzle (13) and the cold-air nozzle (14) have at least approximately the same blower cross section (16, 17).
 5. The device of claim 2, characterized in that the hot-air nozzle (13) has a smaller blower cross section (16) than the blower cross section (17) of the cold-air nozzle (14).
 6. The device of claim 2, characterized in that the hot-air nozzle (13) and the cold-air nozzle (14) end at the same length.
 7. The device of claim 2, characterized in that the air nozzle attachment (8) is embodied as being axially rotatably connectable in the region of the blower opening (7).
 8. The device of claim 2, characterized in that the air nozzle attachment (8) is connectable with the region of the blower opening (7) by means of a snap-on connection (18) that can be detached again.
 9. The device of claim 2, characterized in that the air nozzle attachment (8) comprises heat-resistant plastic (19).
 10. The device of claim 2, characterized in that the outer parts of the hot-air nozzle (13) and of the cold-air nozzle (14) are identified visually differently.
 11. The device of claim 10, characterized in that the outer part (20) of the hot-air nozzle (13) is identified by a red color, and the outer part (21) of the cold-air nozzle (14) is identified by a blue color.
 12. The device of claim 2, characterized in that a hot-air nozzle attachment (23) is provided for the air nozzle attachment (8) for selective dampening. 